MMC: OMAP: Modifications at N800 MMC board specific file to work MMC multislot support
Subsystems (3)
PATCH 9/14 MMC: OMAP: Modifications at N800 MMC board specific file to work MMC multislot support
From: Jarkko Lavinen <[email protected]>
Modifications at board-n800-mmc.c file to work with MMC multislot support.
Signed-off-by Jarkko Lavinen <[email protected]>
Signed-off-by Juha Yrjola <[email protected]>
Signed-off-by Carlos Eduardo Aguiar <[email protected]>
--- arch/arm/mach-omap2/board-n800-mmc.c | 55 +++++++++++++++++++++------------- 1 files changed, 34 insertions(+), 21 deletions(-)
arch/arm/mach-omap2/board-n800-mmc.c +34 -21
@@ -13,13 +13,14 @@#include <asm/arch/menelaus.h> #include <asm/arch/gpio.h> +#include <asm/mach-types.h> +#include <linux/delay.h> +#ifdef CONFIG_MMC_OMAP static const int slot_switch_gpio =96 ; -static const int slot1_wp_gpio =23 ; -static const int slot2_wp_gpio =8 ; -static int slot1_cover_closed; -static int slot2_cover_closed; +static int slot1_cover_open; +static int slot2_cover_open;static struct device *mmc_device;/*
@@ -158,18 +159,27 @@ static int n800_mmc_get_cover_state(struct device *dev, int slot) slot++;BUG_ON (slot !=1 && slot !=2 );if (slot ==1 ) -return slot1_cover_closed; +return slot1_cover_open;else -return slot2_cover_closed; +return slot2_cover_open; }static void n800_mmc_callback (void *data,u8 card_mask) { -if (card_mask & (1 <<1 )) - slot2_cover_closed =0 ; +int bit, *openp, index; + +if (machine_is_nokia_n800 ()) { + bit =1 <<1 ; + openp = &slot2_cover_open; + index =1 ; + } + +if (card_mask & bit) + *openp =1 ;else - slot2_cover_closed =1 ; -omap_mmc_notify_cover_event (mmc_device,1 , slot2_cover_closed); + *openp =0 ; + +omap_mmc_notify_cover_event (mmc_device, index, *openp); }void n800_mmc_slot1_cover_handler (void *arg,int state)
@@ -177,13 +187,13 @@ void n800_mmc_slot1_cover_handler(void *arg, int state)if (mmc_device ==NULL )return ; - slot1_cover_closed = state; + slot1_cover_open = !state;omap_mmc_notify_cover_event (mmc_device,0 , state); }static int n800_mmc_late_init (struct device *dev) { -int r; +int r, bit, *openp; mmc_device = dev;
@@ -202,10 +212,19 @@ static int n800_mmc_late_init(struct device *dev)if (r <0 )return r; -if (r & (1 <<1 )) - slot2_cover_closed =1 ; +if (machine_is_nokia_n800 ()) { + bit =1 <<1 ; + openp = &slot2_cover_open; + } + +/* All slot pin bits seem to be inversed until first swith change */ +if (r ==0xf || r == (0xf & ~bit)) + r = ~r; + +if (r & bit) + *openp =1 ;else - slot2_cover_closed =0 ; + *openp =0 ; r =menelaus_register_mmc_callback (n800_mmc_callback,NULL );
@@ -255,12 +274,6 @@ void __init n800_mmc_init(void)BUG ();omap_set_gpio_dataout (slot_switch_gpio,0 ); omap_set_gpio_direction(slot_switch_gpio, 0); -if (omap_request_gpio (slot1_wp_gpio) <0 ) -BUG (); -if (omap_request_gpio (slot2_wp_gpio) <0 ) -BUG (); -omap_set_gpio_direction (slot1_wp_gpio,1 ); - omap_set_gpio_direction(slot2_wp_gpio, 1); }#else
-- 1.5.3.GIT